AS4C8M16S-7BCN Alliance Memory, AS4C8M16S-7BCN Datasheet - Page 12

• Manufacturer Part Number: AS4C8M16S-7BCN
• Description: DRAM 128Mb, 3.3V, 143Mhz 8M x 16 SDRAM
• Manufacturer: Alliance Memory

Specifications of AS4C8M16S-7BCN

• Rohs: yes
• Data Bus Width: 16 bit
• Organization: 8 M x 16
• Memory Size: 128 MB
• Maximum Clock Frequency: 143 MHz
• Access Time: 5 ns, 5.4 ns
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 3 V
• Maximum Operating Current: 120 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT

FEBRUARY 2011
*Note: RFU (Reserved for future use) should stay “0” during MRS cycle.
Table 5. Mode Register Bitmap
BA0,1 A11,A10
RFU*
A6
A9
CLK
CKE
CS#
RAS#
CAS#
WE#
A0-A9,
A11
A10
DQM
DQ
0
0
0
0
1
BA0,1
0
1
Write Burst Length
A5
0
0
1
1
0
All other Reserved
RFU*
Hi-Z
Single Bit
Burst
A4
0
1
0
1
1
T0
WBL
A9
CAS# Latency
Reserved
Reserved
Reserved
T1
2 clocks
3 clocks
A8
Test Mode
PrechargeAll
Figure 15. Mode Register Set Cycle
A8
0
1
0
T2
A7
A7
0
0
1
T3
t
Vendor Use Only
Vendor Use Only
RP
A6
Test Mode
CAS# Latency
Normal
T4
Address Key
Mode Register
Set Command
A5
A2
0
0
0
0
1
T5
12
A4
A1
0
0
1
1
1
t
T6
MRD
All other Reserved
A3
BT
A0
0
1
0
1
1
T7
Any
Command
Full Page (Sequential)
A3
A2
0
1
Burst Length
Burst Length
T8
Burst Type
Sequential
Interleave
A1
1
2
4
8
T9
AS4C8M16S
Don’t Care
A0
T10